751.
A system of classification in which a large number of traits are considered, is
A
artificial system
B
synthetic system
C
natural system
D
phylogenetic system
Answer :
natural system
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Artificial system of classification is based on comparison of one or a few characters. A system based upon a large no. of natural characters or traits is natural system of classification. Proposed by de Jussieu, phylogenetic system of classification indicates the evolutionary or phylogenetic relationship of organisms.
752.
Father of biochemistry is
A
Purkinje
B
Schultze
C
Leibig
D
Blackman
Answer :
Leibig
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753.
Bacterial leaf blight of rice is caused by a species of
A
Xanthomonas
B
Pseudomonas
C
Alternaria
D
Erwinia
Answer :
Xanthomonas
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Bacterial leaf blight of rice is caused by a species of Xanthomonas. Mature rice plant are infected by these bacteria, lesion begins as water soaked stripes on the leaf blades and eventually would increase in length and width becoming yellow to grayish-white until the entire leaf dries up.
754.
Most common method of reproduction in procaryotes
A
Budding
B
Binary fission
C
Transduction
D
Conjugation
Answer :
Binary fission
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755.
In weak electric current Amoeba
A
Movement towards Cathode
B
Movement towards Anode
C
Dies
D
Encystment
Answer :
Movement towards Cathode
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756.
In euglenoids, the stored food is paramylum which is
A
Conversion product of glycogen
B
Conversion product of starch
C
A type of lipid
D
A type of protein
Answer :
Conversion product of starch
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757.
In which type of medium occurs in food vacuole of Amoeba
A
First acidic and then alkaline
B
Only alkaline
C
First alkaline and then acidic
D
Only acidic
Answer :
First acidic and then alkaline
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758.
Sex plasmid occurs in
A
Recipient bacteria
B
Donor bacteria
C
Bacteriophage
D
Diplococus
Answer :
Donor bacteria
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759.
Plant diseases due to deficiency of minerals is studies under
A
Plant pathology
B
Plantphysiology
C
Plant embryology
D
Plant ecology
Answer :
Plantphysiology
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760.
In majority of lichens the algal and Fungal partner belong to
A
Green algae and ascomycetes
B
Blue green algae and Basidiomycetes
C
Green algae and any fungi
D
Green algae and duteromycetes
Answer :
Green algae and ascomycetes
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